This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ50X200-100, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X200-100
The AirTAC SIJ50 Double Rod Adjustable Cylinder SIJ50X200-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 200mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ50X200-100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke200 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ50X200-100
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X200-100
The AirTAC SIJ50X200-100 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, giving a usable 100-200 mm window from the 200 mm nominal maximum. The direct replacement is the SAIJ50X200-100, matching the interface, force, and mounting.
The SAIJ successor retains ISO 15552 mounting interchange and upgrades to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. This plain SKU lacks a magnet (-S) so it cannot take a switch. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant to hold loads on air loss.
Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X200-100 Technical Specifications
| Model | Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X200-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ50X200-100 |
| Bore size | Ø50 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ50X200-100 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAIJ50X200-100 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X200-100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×200 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X200-100 Is Used
Variable-depth pressing
Allows operators to fine-tune the extend stroke on-site for pressing parts to varying depths without swapping cylinders.
Adjustable diverters
Diverter arms requiring different reach lengths can be set by trimming the extend stroke up to 100 mm.
Format change pushers
Packaging lines can adjust pusher travel on the fly to accommodate varying box sizes within the 100-200 mm window.
Replacing the Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X200-100 with the SAIJ50X200-100
To replace the discontinued SIJ50X200-100, order the direct replacement SAIJ50X200-100. Choose the 100 mm adjust window if you need to trim the extend stroke on-site between 100 and 200 mm. Mounting options include FA, LB, and TC brackets. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For strokes at or above 300 mm, verify side-load limits to prevent rod binding. Note the external stop sets end position but is not a lock; for held loads use an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ50X200-100
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X200-100 FAQ
Yes, the SIJ50X200-100 is discontinued. The direct replacement is the SAIJ50X200-100, which shares the same ISO 15552 interface, 50 mm bore, 200 mm stroke, 100 mm adjust window, G1/4 port, and mounting options.
The external stop screw allows trimming the extend stroke by up to 100 mm on-site, yielding a usable 100-200 mm stroke. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ50X200-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ50X200-100 replacement — usually within 7-8 hours.